Malicious PDF — malware analysis report

Static analysis result for SHA-256 17742aa3c065ea32…

MALICIOUS

PDF

378.2 KB Created: 2015-08-21 09:15:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 75b135f6a768d97fe5a9ad6380880405 SHA-1: 15d49615cc1686259a4b7205c5af3ac726a8b10b SHA-256: 17742aa3c065ea3253db9329d80c99c2e428896e3461608b26ad3923dcc443e2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This indicates the file is intended to lure users to a harmful site, likely for phishing or to download further malware. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D0%B1%D0%B0%D0%BB%D0%B0%D0%B3%D0%B0%D0%BD+%D0%BB%D0%B8%D0%BC%D0%B8%D1%82%D0%B5%D0%B4+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654678_skachat_multfilm_holodnoe_serdce_2013_cherez_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654682_skachat_programmu_torrent_3x_speed.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654698_wetransfer_fayloobmennik_na_russkom_yazuyke.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059f95.bin
8295c0c287eabe29b3095861f3e405183c249fb0d1e10cf9b4be37fcafdf1954		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F95 7856 bytes
font_01_sfnt_off0005b642.bin
d747c7f61da3c18fba1d881240433a9d93aa58d4f30f342810f548808866b95c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B642 16804 bytes

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